Changed default mode to development

src/kemal.cr

@@ -7,7 +7,7 @@ at_exit do
       Kemal.config.port = opt_port.to_i
     end
     opts.on("-e ", "--environment ", "environment") do |env|
-      Kemal.config.env = env
+      env ? Kemal.config.env = env : "development"
     end
   end
 

src/kemal/config.cr

@@ -1,5 +1,4 @@
 module Kemal
-
   class Config
     INSTANCE = Config.new
     HANDLERS = [] of HTTP::Handler

src/kemal/logger.cr

@@ -33,5 +33,4 @@ class Kemal::Logger < HTTP::Handler
 
     "#{(millis * 1000).round(2)}µs"
   end
-
 end